laboratory equipment 
These materials are highly varied: measurement instruments, various containers, heat sources, experimentation materials and mounting hardware.
Fine tube that is open at both ends; it is used to transfer very precise quantities of liquids from one container to another.
straight stopcock burette
Long graduated tube for measuring liquids with high precision; it is fitted with a valve for manually regulating the flow.
Cylindrical tube used to conduct various chemical experiments on small quantities (normally, it is not filled above one-third).
Graduated tube with a spout that is used especially for measuring small amounts of liquid with precision.